Reliability
Self-hosting LLM …
Why we self-hosted in the first place
At Colombia’s first fully digital bank, the pressure to use LLMs showed up the same way it did everywhere else. Everyone wanted summarization, log triage, and natural-language querying over operational data. The catch was that our data (transaction …
Running a digital bank at …
Why five nines, and what it actually cost us to promise it
For a little over five years I was the DevOps and Infrastructure Lead for Colombia’s first fully digital bank, built on AWS. Signing up to a 99.999% availability SLO sounds like a slide-deck number until you do the arithmetic. It …